الشاحن ده اصلي.

A common Egyptian pronunciation is:

esh-shāḥen da aṣli

A simple learner-friendly transliteration is:

esh-SHAH-hen da AS-li

A few notes:

• الشاحن is usually pronounced esh-shāḥen in Egyptian.
• ده is da or dah.
• اصلي / أصلي is aṣli or simply asli.

The ḥ sound in شاحن is the strong Arabic ح, not the English h.

In Egyptian Arabic, the demonstrative often comes after the noun.

So:

• الشاحن ده = this charger
• literally, it looks like the charger this

That is normal Egyptian word order.
A native English speaker often expects this charger, but Egyptian usually says the charger this.

Because in Arabic, the verb to be is usually omitted in the present tense.

So:

• الشاحن ده اصلي = This charger is original/genuine
• there is no separate word for is

This is very common in both Egyptian Arabic and Standard Arabic.

In Egyptian Arabic, when you use ده / دي / دول after a noun, the noun is normally definite.

So:

• الشاحن ده literally looks like the charger this
• but it means this charger

That is just how Egyptian packages the idea.

Because here اصلي is the predicate of the sentence: it tells you something about the charger.

So:

• الشاحن ده اصلي = This charger is genuine/original

But:

• الشاحن الأصلي = the original charger

That is a very important difference:

• الشاحن ده اصلي = a full sentence
• الشاحن الأصلي = a noun phrase

Here اصلي usually means:

• original
• genuine
• authentic
• often, in everyday shopping context, not fake

So if someone says الشاحن ده اصلي, they often mean:

• this charger is the real one
• this charger is not a copy
• this charger is not counterfeit

Because ش is a sun letter.

The ل of الـ assimilates to the first consonant, so:

• written: الشاحن
• pronounced: esh-shāḥen

You still write الـ, but in speech the l sound disappears and the sh sound is doubled.

It is Egyptian Arabic.

The clearest clue is ده after the noun:

• الشاحن ده

That is a very Egyptian-style structure.

In Modern Standard Arabic, you would more likely see something like:

• هذا الشاحن أصلي

So if you are learning Egyptian, this sentence is perfectly natural.

Yes.

For Egyptian Arabic, the most common forms are:

• ده = this, masculine singular
• دي = this, feminine singular
• دول = these

So if the noun were feminine, you would use دي, not ده.

Yes. Adjectives in Arabic usually agree with the noun.

Here الشاحن is masculine, so:

• اصلي / أصلي

If the noun were feminine, you would usually say:

• أصلية

For example:

• البطارية دي أصلية = This battery is genuine

In careful spelling, it is usually أصلي with a hamza.

But in informal typing, texting, and everyday online Arabic, people often leave hamzas out.

So:

• أصلي = more careful spelling
• اصلي = very common informal spelling

Both are commonly understood.

In Egyptian Arabic, you usually use مش for this kind of negation:

• الشاحن ده مش أصلي

That means:

• This charger is not genuine
• This charger isn’t original

So the pattern is:

noun + ده/دي + مش + adjective

Not exactly.

• الشاحن ده أصلي = This charger is genuine/original
• ده الشاحن الأصلي = This is the original charger

The second one points to a specific charger as the original one, while the first one describes the charger as genuine.

That difference comes from whether أصلي is:

• a predicate: أصلي
• or part of the noun phrase: الأصلي